Table 2 The experimental design set up.

From: Co-application of high temperature biochar with 3,4-dimethylpyrazole-phosphate treated ammonium sulphate improves nitrogen use efficiency in maize

No ammonium sulphate (NoAS)

Un-stabilized ammonium sulphate (USAS)

Stabilized ammonium sulphate with DMPP (SAS)

Control (no biochar)

No biochar + 1.0345 g N from USAS

No biochar + 1.0345 g N from SAS

1% biochar

1% biochar + 1.0345 g N from USAS

1% biochar + 1.0345 g N from SAS

2% biochar

2% biochar + 1.0345 g N from USAS

2% biochar + 1.0345 g N from SAS